Before, bottle manufacturing technique with high weight and high wall-thickness was employed to provide internal pressure strength of glass bottles. Due to the beverage manufacturers’ requirements and adverse effect of the weight of the glass bottles to the users, we assumed a glass manufacturing technique using bottles with low wall thickness having the same internal pressure strength as the bottles with high wall thickness.
Thanks to this glass manufacturing technique, being the acronym for “Narrow Neck Press and Blow”, glass bottle costs and raw material costs are reduced.
AIS (Advanced Individual Section) supplied by Emhart Glass Company are products specialized for NNPB. Such machines having PPC (Plunger Process Control) system, measure each drop of glass product (namely the“gob”) introduced to the system and keep the weight constant all the time. At GCAManufacturing Facility, PPC Technique is not only employed for manufacturing glass bottles, but also for glass jars. Since the glass jars manufactured using this method do have the same weight, the losses caused by weight failures are prevented.
Hot coating in glass packaging manufacturing forms the lining for the cold coating. While hot coating material is required to be at a maximum quantity on the surface of the product (>20 ctu), it is expected to be none at the brim (<10 ctu).
The hot coating equipment used for glass packaging manufacturing is a very specialized equipment which provides the sensitive adjustments within the product.
The regenerative furnaces serving at GCAoperates on the mechanism that the waste heat leaving the furnace goes through the structure where bricks are laid like honeycomb after further heating to provide less heat and less emission. For the purposes of sustainability in the regenerative furnaces, the two different heating sections in the furnace are displaced every 20 minutes.
In the process of such displacement, exhausts and inlets are also relocated so that atmospheric air penetrates into the furnace, which in return causes drop of the temperature in the furnace, and thereby, increases fuel consumption.
But thanks to the regenerative structure heated up to 1.100- 1.200°C, the atmospheric air input is heated and fuel is saved. At GCAManufacturing Facility, the regenerative furnace runs on natural gas, which is the most environment friendly and low cost fuel. In this round the clock working furnace, we have back-up systems to shift to alternative fuels in case of a possible fuel drop or cut.